Process for preparing poly(aryl ether)ketones using a sodium car

Details Process for preparing poly(aryl ether)ketones using a sodium car Process for preparing poly(aryl ether)ketones using a sodium car

1986-04-25

1988-05-31

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, C08G 802

Patent

active

047482273

ABSTRACT:
Described herein is a novel process for the preparation of poly(aryl ether ketones). The process comprises reacting an activated dihalobenzenoid compound with a diphenol and/or in self-condensing a halophenol whose halogen atom is activated towards nucleophilic substitution reactions. The polymerizations are performed at high temperatures, in an aprotic solvent, and in the presence of a base. The base comprises sodium carbonate or bicarbonate and a potassium, rubidium or cesium salt of an organic acid.

REFERENCES:
patent: 4176222 (1979-11-01), Cinderey
patent: 4636557 (1987-01-01), Deckers
patent: 4638044 (1987-01-01), Kelsey

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